48128569 has 2 divisors, whose sum is σ = 48128570. Its totient is φ = 48128568.

The previous prime is 48128551. The next prime is 48128593. The reversal of 48128569 is 96582184.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46717225 + 1411344 = 6835^2 + 1188^2 .

It is a cyclic number.

It is not a de Polignac number, because 48128569 - 2⁵ = 48128537 is a prime.

It is a super-2 number, since 2×48128569² = 4632718307975522, which contains 22 as substring.

It is equal to p_2895379 and since 48128569 and 2895379 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (48128599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24064284 + 24064285.

It is an arithmetic number, because the mean of its divisors is an integer number (24064285).

Almost surely, 2^48128569 is an apocalyptic number.

It is an amenable number.

48128569 is a deficient number, since it is larger than the sum of its proper divisors (1).

48128569 is an equidigital number, since it uses as much as digits as its factorization.

48128569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 43.

The square root of 48128569 is about 6937.4756936511. The cubic root of 48128569 is about 363.7483089792.

The spelling of 48128569 in words is "forty-eight million, one hundred twenty-eight thousand, five hundred sixty-nine".